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Donald A. Hall Estate Collection

Calculated Weights and Loading Blueprint (1927)

An original blue cyanotype blueprint detailing the general specifications, calculated weights, and loading data for the Spirit of St. Louis, signed by Donald A. Hall on May 9, 1927. — Calculated Weights and Loading Blueprint (1927) · Donald A. Hall Estate Collection

An essential 1927 engineering document from the Donald A. Hall Estate. This original cyanotype blueprint outlines the general specifications, calculated weights, and critical loading data for the Spirit of St. Louis, bearing the signature of Chief Engineer Donald A. Hall Sr. dated May 9, 1927.